Excuse me: What is the difference between patent issuance and patent authorization?

"Patent publication" refers to the publication of an application for a patent for invention from the date of filing (or priority date) to the expiration of 18 months or at the request of the applicant in advance. "Patent announcement" refers to the authorization announcement when an application for a patent for invention is granted after substantive examination and no reason for rejection is found; Notice of authorization granted to an application for a patent for utility model or design after preliminary examination without finding reasons for rejection; Announcement on the invalidation of patents for inventions, utility models and designs. Patent authorization refers to the invention patent certificate granted by China National Intellectual Property Administration after the invention has passed the examination, which will be protected by law. Patent application process